package com.bite.order.service;

import com.bite.order.mapper.OrderMapper;
import com.bite.order.model.OrderInfo;
import com.bite.order.model.ProductInfo;
import com.mysql.cj.x.protobuf.MysqlxCrud;
import jakarta.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;

import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

@Service
public class OrderService {
    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private RestTemplate restTemplate;

    @Autowired
    private DiscoveryClient discoveryClient;

    //计数器
    private AtomicInteger count = new AtomicInteger(1);

    private List<ServiceInstance> instances;

    @PostConstruct
    public void init(){
        //从eureka获取服务列表
        instances = discoveryClient.getInstances("product-service");
    }

//    public OrderInfo selectOrderById(Integer orderId){
//        OrderInfo orderInfo = orderMapper.selectOrderById(orderId);
////        String url = "http://127.0.0.1:9090/product/"+orderInfo.getProductId();
//        //从eureka获取服务列表
//        List<ServiceInstance> instances = discoveryClient.getInstances("product-service");
//        String uri = instances.get(0).getUri().toString();
//        String url = uri+"/product/"+orderInfo.getProductId();
//        ProductInfo productInfo = restTemplate.getForObject(url, ProductInfo.class);
//        orderInfo.setProductInfo(productInfo);
//        return orderInfo;
//
//    }


//    public OrderInfo selectOrderById(Integer orderId) {
//        OrderInfo orderInfo = orderMapper.selectOrderById(orderId);
////        String url = "http://127.0.0.1:9090/product/"+orderInfo.getProductId();
//
//        int index = count.getAndIncrement() % instances.size();
//        String uri = instances.get(index).getUri().toString();
//        String url = uri + "/product/" + orderInfo.getProductId();
//        ProductInfo productInfo = restTemplate.getForObject(url, ProductInfo.class);
//        orderInfo.setProductInfo(productInfo);
//        return orderInfo;
//    }


        public OrderInfo selectOrderById(Integer orderId) {
            OrderInfo orderInfo = orderMapper.selectOrderById(orderId);
            String url = "http://product-service/product/"+orderInfo.getProductId();
            ProductInfo productInfo = restTemplate.getForObject(url, ProductInfo.class);
            orderInfo.setProductInfo(productInfo);
            return orderInfo;
        }
}
